CN114325297B - Burn-in test device for laser chip - Google Patents
Burn-in test device for laser chip Download PDFInfo
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- CN114325297B CN114325297B CN202111147590.7A CN202111147590A CN114325297B CN 114325297 B CN114325297 B CN 114325297B CN 202111147590 A CN202111147590 A CN 202111147590A CN 114325297 B CN114325297 B CN 114325297B
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- 238000012360 testing method Methods 0.000 title abstract description 31
- 239000000428 dust Substances 0.000 claims abstract description 64
- 238000009413 insulation Methods 0.000 claims description 19
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 210000002105 tongue Anatomy 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 17
- 230000032683 aging Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 12
- 239000002390 adhesive tape Substances 0.000 description 4
- 230000015654 memory Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The invention discloses an aging test device of a laser chip, comprising: the box and along vertical direction interval set up a plurality of heat insulating board in the box, enclose into a furnace chamber between two upper and lower adjacent heat insulating boards and the box, every but install at least one unit drawer in the furnace chamber pull ground, unit drawer includes the bottom plate that the level set up and sets up in the front panel of bottom plate one end perpendicularly, the bottom of box has a wind storehouse, the ash falling passageway that has a setting along vertical direction in the box, ash falling passageway is located between the inner wall of front panel one end and box is kept away from to the heat insulating board, ash falling passageway and furnace chamber, wind storehouse intercommunication and its and furnace chamber, wind storehouse between install the filter screen, ash falling passageway bottom is located one side movable mounting dust collecting box that the filter screen is on the back of the wind storehouse mutually. The invention can collect and discharge dust and impurities in the furnace chamber in time, and ensures the test precision of the chip and the stability and safety of the whole test device in the long-term use process.
Description
Technical Field
The invention relates to an aging test device for a laser chip, and belongs to the technical field of optical communication chip testing.
Background
In the electronic field, the use of memories is becoming wider and wider, the quality of memories is also becoming more and more important, and devices, equipment or systems for testing memories are also emerging successively; aging and testing of products in the production of large quantities of electronic products is currently a necessary step for many enterprises to ensure quality. The existing test and aging mode is to discharge a test shelf in a constant temperature aging room, place a circuit board product on the shelf, and test the circuit board product by connecting an operator with a power supply through manual wiring. In the prior art, the following problems exist: the existing testing device cannot automatically clean dust and impurities in the testing device, and the dust and impurities are accumulated for a long time and easily influence the testing data.
Disclosure of Invention
The invention aims to provide a laser chip aging test device which can collect and discharge dust and impurities in a furnace chamber in time and ensure the test precision of the chip and the overall stability and safety of the test device in the long-term use process.
In order to achieve the above purpose, the invention adopts the following technical scheme: a burn-in apparatus for a laser chip, comprising: the device comprises a box body and a plurality of heat insulation plates arranged in the box body at intervals along the vertical direction, wherein a furnace chamber is defined between two upper and lower adjacent heat insulation plates and the box body, at least one unit drawer is drawably arranged in each furnace chamber, each unit drawer comprises a bottom plate arranged horizontally and a front panel vertically arranged at one end of the bottom plate, and the other end of the bottom plate is embedded in the furnace chamber and is in sliding connection with the heat insulation plates defining the furnace chamber;
the bottom of the box body is provided with a wind bin, a driving motor is arranged in the wind bin, a driving shaft of the driving motor is connected with fan blades, a dust falling channel arranged along the vertical direction is arranged in the box body, the dust falling channel is positioned between one end of the heat insulation plate far away from the front panel and the inner wall of the box body, the dust falling channel is communicated with the furnace chamber and the wind bin, a filter screen is arranged between the dust falling channel and the furnace chamber and the wind bin, and a dust collecting box is movably arranged at one side of the bottom of the dust falling channel, which is opposite to the wind bin, of the filter screen;
install a first pivot on the front panel inner wall of unit drawer, install the fan in the first pivot, be connected with a sealed cushion on the terminal surface that front panel one end was kept away from to the bottom plate, the one end and the bottom plate of this sealed cushion are connected, the other end is vertical upwards to be bent and be connected with a stay cord, be close to the vertical setting of filter screen the one end activity winding of sealed cushion is kept away from to the stay cord is on a swivel, the swivel is installed on the heat insulating board that is located the bottom plate top.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the box is equipped with the dust collection hole that a plurality of slope set up at intervals on the inner wall towards the filter screen, the one end that the dust collection hole is close to the filter screen is located the below of its one end that keeps away from the filter screen.
2. In the scheme, a plurality of ventilation holes are formed in the front wall plate of the wind bin at intervals.
3. In the above scheme, install a plurality of roller bearing on the lower surface of bottom plate, the recess with roller bearing rolling fit is seted up to the upper surface of heat insulating board.
4. In the scheme, a sliding block is arranged at the bottom of the dust collecting box and is in sliding connection with a sliding groove arranged on the box body.
5. In the scheme, at least three universal wheels are arranged at the bottom of the box body.
6. In the scheme, four universal wheels are respectively arranged at four corners of the box body.
7. In the scheme, at least two automatic lifting columns arranged at intervals are arranged at the bottom of the box body and between the universal wheels.
8. In the scheme, a pull groove is formed in the outer surface of the front panel of the unit drawer.
9. In the scheme, the front panel of the unit drawer is connected with the box body in a matched mode through at least one group of bolts, and the bolts are symmetrically provided with two elastic lock bolts.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the aging testing device for the laser chip can ensure the stability of the testing temperature environment, can collect and discharge dust impurities in the furnace chamber in time when the chip to be tested is loaded by drawing the drawer each time, and ensures the testing precision of the chip and the stability and safety of the whole testing device in the long-term use process.
Drawings
FIG. 1 is a schematic diagram of a burn-in test apparatus for a laser chip according to the present invention;
FIG. 2 is a cross-sectional view of the burn-in apparatus for laser chips according to the present invention;
FIG. 3 is an enlarged view of the structure shown at A in FIG. 2;
FIG. 4 is an enlarged view of the structure at C in FIG. 2;
FIG. 5 is an enlarged view of the structure at D in FIG. 2;
FIG. 6 is an enlarged view of the structure at A-A in FIG. 3.
In the above figures: 1. a case; 2. a heat insulating plate; 3. a cavity; 4. a unit drawer; 41. a bottom plate; 42. a front panel; 5. a wind bin; 6. a driving motor; 7. a fan blade; 8. an ash falling channel; 9. a filter screen; 10. a dust collection box; 11. a first rotating shaft; 12. a fan; 13. sealing the soft cushion; 14. a swivel; 15. a pull rope; 16. dust collecting holes; 17. a vent hole; 181. a slide block; 182. a chute; 19. a heat radiation hole; 20. a roller; 21. a groove; 22. a universal wheel; 23. an automatic lifting column; 24. drawing a groove; 251. a plug pin; 252. a lock hole; 253. and an elastic spring bolt.
Detailed Description
In the description of this patent, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element in question must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in this patent will be understood by those of ordinary skill in the art in a specific context.
Example 1: a burn-in apparatus for a laser chip, comprising: the oven comprises a box body 1 and a plurality of heat insulation plates 2 which are arranged in the box body 1 at intervals along the vertical direction, wherein a furnace cavity 3 is formed between two heat insulation plates 2 which are adjacent up and down and the box body 1, at least one unit drawer 4 is drawably arranged in each furnace cavity 3, the unit drawer 4 comprises a bottom plate 41 which is horizontally arranged and a front panel 42 which is vertically arranged at one end of the bottom plate 41, and the other end of the bottom plate 41 is embedded in the furnace cavity 3 and is in sliding connection with the heat insulation plates 2 which form the furnace cavity 3 in a surrounding manner;
the bottom of the box body 1 is provided with a wind bin 5, a driving motor 6 is arranged in the wind bin 5, a fan blade 7 is connected to a driving shaft of the driving motor 6, the box body 1 is internally provided with an ash falling channel 8 arranged along the vertical direction, the ash falling channel 8 is positioned between one end of the heat insulation plate 2 far away from the front panel 42 and the inner wall of the box body 1, the ash falling channel 8 is communicated with the furnace chamber 3 and the wind bin 5, a filter screen 9 is arranged between the ash falling channel 8 and the furnace chamber 3 and the wind bin 5, and a dust collecting box 10 is movably arranged at one side of the bottom of the ash falling channel 8, which is opposite to the filter screen 9, of the wind bin 5;
a first rotating shaft 11 is installed on the inner wall of a front panel 42 of the unit drawer 4, a fan 12 is installed on the first rotating shaft 11, a sealing cushion 13 is connected to the end face of one end of the bottom plate 41 far away from the front panel 42, one end of the sealing cushion 13 is connected with the bottom plate 41, the other end of the sealing cushion is vertically bent upwards and is connected with a pull rope 15, one end, which is vertically arranged close to the filter screen 9, of the pull rope 15 far away from the sealing cushion 13 is movably wound on a rotating ring 14, and the rotating ring 14 is installed on the heat insulation plate 2 above the bottom plate 41.
The inner wall of the box body 1 facing the filter screen 9 is provided with a plurality of dust collecting holes 16 which are obliquely arranged at intervals, and one end of each dust collecting hole 16 close to the filter screen 9 is positioned below one end of the dust collecting hole away from the filter screen 9; a plurality of ventilation holes 17 are formed in the front wall plate of the wind bin 5 at intervals; the 2 lock holes 252 are respectively arranged on the heat insulation plates 2 on the upper side and the lower side of the bottom plate 41 of the unit drawer 4, and the two sides of the box body 1 are provided with heat dissipation holes 19;
a plurality of rollers 20 are arranged on the lower surface of the bottom plate 41, and grooves 21 which are in rolling fit with the rollers 20 are formed on the upper surface of the heat insulation plate 2; a sliding block 181 is installed at the bottom of the dust box 10, and the sliding block 181 is slidably connected with a sliding groove 182 formed on the box body 1; at least three universal wheels 22 are installed at the bottom of the box 1.
Example 2: a burn-in apparatus for a laser chip, comprising: the oven comprises a box body 1 and a plurality of heat insulation plates 2 which are arranged in the box body 1 at intervals along the vertical direction, wherein a furnace cavity 3 is formed between two heat insulation plates 2 which are adjacent up and down and the box body 1, at least one unit drawer 4 is drawably arranged in each furnace cavity 3, the unit drawer 4 comprises a bottom plate 41 which is horizontally arranged and a front panel 42 which is vertically arranged at one end of the bottom plate 41, and the other end of the bottom plate 41 is embedded in the furnace cavity 3 and is in sliding connection with the heat insulation plates 2 which form the furnace cavity 3 in a surrounding manner;
the bottom of the box body 1 is provided with a wind bin 5, a driving motor 6 is arranged in the wind bin 5, a fan blade 7 is connected to a driving shaft of the driving motor 6, the box body 1 is internally provided with an ash falling channel 8 arranged along the vertical direction, the ash falling channel 8 is positioned between one end of the heat insulation plate 2 far away from the front panel 42 and the inner wall of the box body 1, the ash falling channel 8 is communicated with the furnace chamber 3 and the wind bin 5, a filter screen 9 is arranged between the ash falling channel 8 and the furnace chamber 3 and the wind bin 5, and a dust collecting box 10 is movably arranged at one side of the bottom of the ash falling channel 8, which is opposite to the filter screen 9, of the wind bin 5;
a first rotating shaft 11 is installed on the inner wall of a front panel 42 of the unit drawer 4, a fan 12 is installed on the first rotating shaft 11, a sealing cushion 13 is connected to the end face of one end of the bottom plate 41 far away from the front panel 42, one end of the sealing cushion 13 is connected with the bottom plate 41, the other end of the sealing cushion is vertically bent upwards and is connected with a pull rope 15, one end, which is vertically arranged close to the filter screen 9, of the pull rope 15 far away from the sealing cushion 13 is movably wound on a rotating ring 14, and the rotating ring 14 is installed on the heat insulation plate 2 above the bottom plate 41.
The inner wall of the box body 1 facing the filter screen 9 is provided with a plurality of dust collecting holes 16 which are obliquely arranged at intervals, and one end of each dust collecting hole 16 close to the filter screen 9 is positioned below one end of the dust collecting hole away from the filter screen 9; a plurality of ventilation holes 17 are formed in the front wall plate of the wind bin 5 at intervals; the 2 lock holes 252 are respectively arranged on the heat insulation plates 2 on the upper side and the lower side of the bottom plate 41 of the unit drawer 4, and the two sides of the box body 1 are provided with heat dissipation holes 19;
four universal wheels 22 are respectively arranged at four corners of the box body 1; at least two automatic lifting columns 23 which are arranged at intervals are arranged at the bottom of the box body 1 and positioned between universal wheels 22, so that the box body 1 can be conveniently moved, the box body 1 is supported and fixed through the automatic lifting columns 23 when the box body 1 is moved to a proper position, and anti-skid patterns can be arranged at the bottom of the automatic lifting columns 23 to strengthen the grabbing force to the ground and prevent the box body 1 from sliding;
the outer surface of the front panel 42 of the unit drawer 4 is provided with a pull groove 24; the front panel 42 of the unit drawer 4 is matched and connected with the lock hole 252 through at least one group of bolts 251, two elastic bolts 253 are symmetrically arranged on the bolts 251, the whole unit drawer is sealed and locked by utilizing the interaction of the elastic bolts in the bolts and the lock hole, the influence of the random opening and closing of the drawer on the temperature in a furnace chamber in the aging test process is reduced, and the reliability of the precision box of the aging test is improved.
When the aging testing device of the laser chip is adopted, the working principle is as follows: when a chip test is performed, firstly, the pull groove 24 is pulled to pull the drawer unit outwards, when the drawer is pulled outwards, the sealing cushion 13 is driven to move downwards to open the filter screen 9, meanwhile, a pulling force is formed, the fan 12 is driven to rotate by the force generated by the pulling force, dust impurities in the whole furnace chamber 3 are blown to float towards the direction of the filter screen 9 by the rotation of the fan 12, part of dust impurities pass through the filter screen 9 and fall into the dust falling channel 8, the other part of dust impurities enter the dust collecting hole 16 because the wind force of the fan 12 is too large, slide into the dust falling channel 8 after the dust collecting hole 16 stays, finally, all the dust impurities are blown out to enter the dust collecting box 10 through the dust falling channel 8, an adhesive tape is arranged at the bottom of the dust collecting box 10 to be stuck with the dropped dust impurities, the dust impurities are prevented from rising, and a worker can open the dust collecting box 10 to replace the adhesive tape at intervals; then, placing the chip to be tested on the bottom plate 41 for testing, generating thrust from outside to inside, moving the rolling shaft 20 inwards in the groove 21 to drive the whole unit drawer 4 to be closed, and meanwhile, the pull rope 15 movably follows the action of the unit drawer 4 in the swivel 14 to drive the sealing cushion 13 to move upwards to seal the filter screen 9, so that the sealing effect is achieved;
the dust and impurity in the whole furnace chamber is blown to float towards the direction of the filter screen by the rotation of the fan, part of dust and impurity falls into the dust collecting hole through the filter screen, the other part of dust and impurity falls into the dust collecting hole due to overlarge wind power of the fan after staying in the dust collecting hole, the dust and impurity falls into the dust collecting hole, the dust and impurity falling is prevented from rising by the adhesive tape arranged at the bottom of the dust collecting box, and workers can open the dust collecting box to replace the adhesive tape at intervals;
the device can ensure the stability of the test temperature environment, collect and discharge dust and impurities in the furnace chamber in time when the drawer is pulled for each time to load the chip to be tested, and ensure the test precision of the chip and the overall stability and safety of the test device in the long-term use process.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (10)
1. A burn-in apparatus for a laser chip, comprising: the box (1) and a plurality of heat insulating boards (2) arranged in the box (1) along the vertical direction interval enclose into a furnace chamber (3) between two upper and lower adjacent heat insulating boards (2) and the box (1), every but install at least one unit drawer (4) in furnace chamber (3) with pull, its characterized in that: the unit drawer (4) comprises a bottom plate (41) which is horizontally arranged and a front panel (42) which is vertically arranged at one end of the bottom plate (41), and the other end of the bottom plate (41) is embedded into the furnace chamber (3) and is in sliding connection with the heat insulation plate (2) which surrounds the furnace chamber (3);
the dust collecting box is characterized in that the bottom of the box body (1) is provided with a wind bin (5), a driving motor (6) is arranged in the wind bin (5), a fan blade (7) is connected to a driving shaft of the driving motor (6), a dust falling channel (8) which is arranged in the vertical direction is arranged in the box body (1), the dust falling channel (8) is positioned between one end, away from the front panel (42), of the heat insulating plate (2) and the inner wall of the box body (1), the dust falling channel (8) is communicated with the furnace chamber (3) and the wind bin (5), a filter screen (9) is arranged between the dust falling channel (8) and the furnace chamber (3) and the wind bin (5), and a dust collecting box (10) is movably arranged at one side, opposite to the wind bin (5), of the bottom of the dust falling channel (8);
install a first pivot (11) on the front panel (42) inner wall of unit drawer (4), install fan (12) on first pivot (11), be connected with a sealed cushion (13) on the terminal surface of front panel (42) one end is kept away from to bottom plate (41), the one end and the bottom plate (41) of this sealed cushion (13) are connected, the other end is vertical upwards to be bent and be connected with one stay cord (15), be close to filter screen (9) vertical setting stay cord (15) keep away from the one end activity winding of sealed cushion (13) on a swivel (14), swivel (14) are installed on heat insulating board (2) that are located bottom plate (41) top.
2. The burn-in apparatus of claim 1 wherein: the dust collection device is characterized in that a plurality of dust collection holes (16) which are obliquely arranged are formed in the inner wall, facing the filter screen (9), of the box body (1), and one end, close to the filter screen (9), of each dust collection hole (16) is located below one end, far away from the filter screen (9), of each dust collection hole.
3. The burn-in apparatus of a laser chip according to claim 1 or 2, characterized in that: a plurality of ventilation holes (17) are formed in the front wall plate of the wind bin (5) at intervals.
4. The burn-in apparatus of a laser chip according to claim 1 or 2, characterized in that: the lower surface of the bottom plate (41) is provided with a plurality of rollers (20), and the upper surface of the heat insulation plate (2) is provided with grooves (21) in rolling fit with the rollers (20).
5. The burn-in apparatus of a laser chip according to claim 1 or 2, characterized in that: a sliding block (181) is arranged at the bottom of the dust collection box (10), and the sliding block (181) is in sliding connection with a sliding groove (182) arranged on the box body (1).
6. The burn-in apparatus of claim 1 wherein: at least three universal wheels (22) are arranged at the bottom of the box body (1).
7. The burn-in apparatus of claim 6, wherein: the four universal wheels (22) are respectively arranged at four corners of the box body (1).
8. The burn-in apparatus of claim 6 or 7, wherein: at least two automatic lifting columns (23) which are arranged at intervals are arranged at the bottom of the box body (1) and positioned between the universal wheels (22).
9. The burn-in apparatus of claim 1 wherein: the outer surface of the front panel (42) of the unit drawer (4) is provided with a pull groove (24).
10. The burn-in apparatus of claim 1 wherein: the front panel (42) of the unit drawer (4) is connected with the box body (1) in a matched mode through at least one group of bolts (251), and two elastic lock tongues (253) are symmetrically arranged on the bolts (251).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111147590.7A CN114325297B (en) | 2021-09-29 | 2021-09-29 | Burn-in test device for laser chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111147590.7A CN114325297B (en) | 2021-09-29 | 2021-09-29 | Burn-in test device for laser chip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114325297A CN114325297A (en) | 2022-04-12 |
| CN114325297B true CN114325297B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111147590.7A Active CN114325297B (en) | 2021-09-29 | 2021-09-29 | Burn-in test device for laser chip |
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| CN (1) | CN114325297B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115728624A (en) * | 2022-11-23 | 2023-03-03 | 镭神技术（深圳）有限公司 | Laser chip aging unit module and laser chip testing device |
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| CN2916551Y (en) * | 2006-05-25 | 2007-06-27 | 昆山聚元测试仪器有限公司 | Array drawer type aging test furnace |
| CN204045987U (en) * | 2014-09-13 | 2014-12-24 | 乐清市万星输配电设备有限公司 | Easy to clean case becomes casing |
| WO2021000602A1 (en) * | 2019-07-04 | 2021-01-07 | 山东科技大学 | Computer case facilitating dust removal |
| CN212781015U (en) * | 2020-06-10 | 2021-03-23 | 宁波市舜力衡电子有限公司 | Automotive electronics product aging testing case |
| CN212989407U (en) * | 2020-07-21 | 2021-04-16 | 深圳市诺尔安磁检测科技有限公司 | Alternating current charging box testing device |
| CN112748304A (en) * | 2021-02-18 | 2021-05-04 | 深圳市环测威检测技术有限公司 | Aging test device for electronic equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6891132B2 (en) * | 2003-10-09 | 2005-05-10 | Micro Control Company | Shutters for burn-in-board connector openings |
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2021
- 2021-09-29 CN CN202111147590.7A patent/CN114325297B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2916551Y (en) * | 2006-05-25 | 2007-06-27 | 昆山聚元测试仪器有限公司 | Array drawer type aging test furnace |
| CN204045987U (en) * | 2014-09-13 | 2014-12-24 | 乐清市万星输配电设备有限公司 | Easy to clean case becomes casing |
| WO2021000602A1 (en) * | 2019-07-04 | 2021-01-07 | 山东科技大学 | Computer case facilitating dust removal |
| CN212781015U (en) * | 2020-06-10 | 2021-03-23 | 宁波市舜力衡电子有限公司 | Automotive electronics product aging testing case |
| CN212989407U (en) * | 2020-07-21 | 2021-04-16 | 深圳市诺尔安磁检测科技有限公司 | Alternating current charging box testing device |
| CN112748304A (en) * | 2021-02-18 | 2021-05-04 | 深圳市环测威检测技术有限公司 | Aging test device for electronic equipment |
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Address after: Building 5, No. 1508, Xiangjiang Road, Suzhou High-tech Zone, Suzhou City, Jiangsu Province 215129 Applicant after: Suzhou Lianxun Instrument Co.,Ltd. Address before: 215011 Building 5, no.1508 Xiangjiang Road, high tech Zone, Suzhou City, Jiangsu Province Applicant before: STELIGHT INSTRUMENT Inc. |
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